Police believe 31-year-old Kimberly Ann McLaughlin may have fallen asleep at the wheel before the crash that killed her and her 3-year-old son and the child's father Wednesday afternoon in Butler County.

THE WHEEL. GOOD AFTERNOON. I'M SALLY WIGGIN. CHANNEL 4 ACTION NEWS REPORTER AMBER NICOTRA IS LIVE AT CHILDREN'S HOSPITAL-- WHERE THE TWO GIRLS ARE AMBER. 3 3 3 3 0512.01 7:51 she's a AN ABSOLUTELY HEARTBREAKING SITUATION, THOSE TWO GIRLS REMAIN HERE AT THE HOSPITAL. THE OLDEST, WHO IS 11 YEARS OLD, IS EXPECTED TO RECOVER, BUT THE LITTLE GIRL, WHO IS ONLY ONE YEAR OLD, IS FIGHTING TO STAY ALIVE. SHE'S A FIGHTER, AND WHEN YOU SEE HER LAYING THERE, SHE'S FIGHTING TO STAY WITH US, BUT IT'S UP TO GOD WHAT HE WANTS TO DO. Reporter: ONE-YEAR-OLD EMILY CRAMER FIGHTS TO SURVIVE WHILE HER GRANDFATHER FIGHTS TO HOLD IT TOGETHER. KIM McLAUGHLIN CRASHED THE VAN SHE WAS DRIVING KILLING HER, HER THREE-YEAR-OLD SON, AND HER BOYFRIEND, THE BABY'S FATHER, 42-YEAR-OLD KERRY CRAMER. HIS OLDEST STEPDAUGHTER WAS ALSO IN THE VAN AND MANAGED TO CALL THEM. SHE SAID, GRANDPA, MAMA PASSED OUT, SHE WRECKED THE VAN. WE'RE BLEEDING, COME GET US. I WANT TO COME WITH YOU GUYS. Reporter: SHE BELIEVED HER MOTHER MAY HAVE FALLEN ASLEEP AT THE WHEEL, HITTING A TREE STUMP, SENDING THE VAN AIRBORNE AND INTO A TREE. SHE DID WHATEVER SHE COULD. Reporter: SHE JUST DROPPED HER DAUGHTER OFF AT SUMMER CAMP WHEN THE WRECK OCCURRED. THEY HAD TO CUT THE TODDLER OUT OF HER CAR SEAT. WHILE EMILY WAS FLOWN TO CHILDREN'S, LITTLE EMILY NEVER MADE IT. THEY WERE JUST NORMAL KIDS AND THEY ENDEARED OUR LIFE. THEY ALWAYS WANTED TO BE DOING SOMETHING, GO SOMEWHERE. Reporter: STATE POLICE STILL INVESTIGATING THIS CRASH. STEPHANIE, THE 11-YEAR-OLD, SUFFERED SOME BROKEN BONES AND CUTS. SHE IS EXPECTED TO RECOVER. LITTLE EMILY, WHO IS ONE YEAR OLD, IS STILL IN A COMA.